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Finding the Fourth Proportional to 543,511.80, 814,948.56 and 164,318.40

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Solution

The fourth proportional to 543,511.80, 814,948.56 and 164,318.40 is: 246,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,511.80 : 814,948.56 = 164,318.40 : x
  2. Step 2: Convert to fraction form
    543,511.80/814,948.56 = 164,318.40/x
  3. Step 3: Cross multiply
    543,511.80x = 814,948.56 × 164,318.40
  4. Step 4: Simplify right side
    543,511.80x = 133,911,043,461.50
  5. Step 5: Solve for x
    x = 133,911,043,461.50/543,511.80
  6. Step 6: Final answer
    x = 246,381.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.